Feed-holler of planingr-machines



The nature of my invention consists in JONATHAN HAL'L, OF WORCESTER, MASSACHUSETTS.

FEED-ROLLER OF IPLANING-IVIACHINES, dw.

Specification of Letters Patent No. 17,833, dated July 21, 1857.

To all whom 'it 'may concern:

Be itknown that tI, JONATHAN HALL, of the city of Worcester, county of Worcester, and Stateof Massachusetts, have invented a new and Improved Mode of IVorking and Adjusting Feed and other Rollers; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

Figure 1 is a pers ective view of a machine, showing a sing e set of feed rollers, in

connection with the parts by which they are worked and adjusted. Fig. 2 is an end view showing the hollow posts in which the movable boxes are, on which the upper roller rests, and the manner of adjustingv them. Fig. 3 is a view showing how connection is preserved in the gearing as the upper roller is raised or depressed.

the use and arrangement of a new and improved manner of gearing, which I call an internal gearing, and by which without any change 'in such gearing, the feed or other rollers may be revolved from each other, at whatever distance separated from each other To enable others to make and use my invention I will proceed to describe its construction and operation.

A, is the bed iece or frame of a machine in which rests t e feed roller B.

C, C, are osts, which support an upper feed roller B', which turns in the boxes D, D. The feed roller B, is revolved by the gear wheel J and by means of the clutch gear wheel J and its shaft Q, and the inion J motion is communicated to the s aft P. This shaft also carries upon its other end a pinion K, which works into the internal gear H, H, upon the inner side of the periphery of the wheel T, which is fixed to and revo ves the shaft of the roller B. The shaft P is supported by the stationary boxes N, N, which are fastened to the posts C, C. As will be at once apparent, motion given to the gear J, will be transferred to and give motion at any velocity desired, to both rollers B, and B. If necessary also, in order .to adapt the arrangement to any particular situation, the internal geared wheel T, may be placed upon the shaft of the other roller, than that illustrated, though in such case some little variation in the gearing, connected with it, may be necessary. The use and application'of the internal gearing for the purposes specified is however the im ortant feature.

In order to ailow of the working of the rollers B, and B', at different distances from each other, and that they may be adjusted at any distance required, the upper roller B, runs u on movable boxes D, D, which are place inside the hollow posts C, C, as shown most plainly in Fig. 2. To render rm the bearings of the roller B a reap 1, is placed over it, and above such cap is an iron or other plate, 2, u von which rests ahollow rubber spring O. T ese boxes D, D with their springs, &c., are supported by the screws E, E and are raised or lowered by motion given to these screws, in the manner hereafter described. The rubber springs, being hollow, allow the screws E,

E', to pass down through them, and thus permit the arrangement to be more compact, and they ermit the roller B, to yield a little, when t e material passing between the rollers is somwhat variable in thickness, and such yielding is desirable, as in feeding rollers in planing machines and the like. In cases however, as in rolling mills, where the cylinders are required to be firm and in a given position, the rubber springs will not, of course, be made use of.

The screws E, E', pass thro ugh the tops of the posts C, O, as shown in the drawings, and u on their upper ends are the beveled gear wlieels e', e', which it into other beveled wheels e, e, and which are worked by the crank and crank shaft F, which is supported by the boxes G, G. As the screws passing down into each post C, C, and connecting with the boxes D, and supporting the shaft of the roller B, have the same thread, and are worked by the same shaft F, it follows that both ends of the roller B, will be equally raised or lowered, whenever the crank F, is turned, and consequently the two rollers B, and B, will constantly be parallel to each other and they can also be adjusted at any required distance without stopping or interfering with any other art of the machinery. The rollers B, and may also be placed, if for any purpose necessary or desired, at an angle toward each other, and

vnot parallel, and in such case the arrangement for adjusting them will keep them at the same angle or inclination, at whatever distance separated.

In order that the elevation or depression of the roller B', and the consequent upward and downward movement of the wheel T, may not interfere with the action of the pinion K, in the internal gearing H, or throw the two out of gear with each other, or cause them to bind in their revolutions, the boX R, in which the end a, of the shaft P runs is not stationary, but rests in a horizontal slot S, in the stand M, which allows that end of the shaft P, to move nearer to or farther from the post C, according to the elevation of the wheel T.

Between the shaft of the roller B', and the shaft P, is a connecting bridle L, one end of which is iXed to the shaft of B', and rises or falls as this roller is moved, and the other end of which is connected to the shaft P, and moves it in the slot S. This slot needs to be only about a quarter of an inch long, to allow an elevation of about four inches to the roller B'. When the roller B', is on a level with the shaft P, the connecting bridle L, will also be level, and the boX R, will be at the outer end of the slot S. When the roller B', is thrown down close to the other roller, or is elevated above the level of shaft P, the boX R, will be drawn by the bridle L, toward the inner end of the slot S. Fig. 3 shows the wheel T, and the connecting bridle in these three situations-the heavy lines showing them in a central position, and the dotted lines showing their position when raised or lowered. By this arrangement and use of the movable box R, and connecting bridle L, the relative positions of the pinion K, and the internal geared wheel T, are preserved the same, whatever may be position or elevation given to the roller B'.

The clutch gear J', instead of moving upon its shaft, as is usually the case, is fixed to the shaft Q, which passes through and slides in the pinion I, which has a flange on its inside to prevent its moving forward when thrown out of gear. When the parts are to be thrown into gear, the wheel J', and the shaft Q, are moved toward the wheel J, and the clutch gear wheel J', connects with the pinion I.

By the use and arrangement of the internal gearing, above described, I avoid the necessity of using steel and expansion gearing, as they are termedfv and other similar arrangements intended to accomplish a like purpose, and which are objectionable, as they require a change of gears-as in the case of star gearing-and produce an increased weight upon the shaft-as in expansion gearing-and cause an increase of friction and of running cost. I am also aware that various methods have been devised and used for raising the roller B', or for placing the two rollers at different distances, from each other, but generally in such cases each end of the roller has been moved separately from the other. I do not therefore claim generally the adjustability of feed and other rollers, or accomplishing this without any change of gearing, as these ends are gained by other methods now known but What I claim as my invention, and desire to secure by Letters Patent, is-

1. The aplplication and use of internal gearing H, substantially as described.

2. I also claim in combination therewith the arrangement of the movable boX R, and connecting bridle L, or their equivalent, for the purposes set forth.

JONATHAN HALL.

Witnesses:

S. D. LAW, JAs. WILSON. 

